set style

src/client/styles/scss/_mixins.scss

@@ -49,6 +49,18 @@
           min-height: calc(100vh - #{$header-plus-footer});   // for IE11
           height: calc(100vh - #{$header-plus-footer});
         }
+
+        .navbar-editor {
+          button {
+            padding: 7px 8px;
+            line-height: 1;
+          }
+
+          img {
+            vertical-align: bottom;
+          }
+        }
+
         // left(editor)
         .page-editor-editor-container {
           min-height: calc(100vh - #{$header-plus-footer});   // for IE11